Tripping mechanism for printing-presses.



R. MIEHLE.

TRIPPING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED FEB. 5, I917.

Patented J une I 1918.

3 SHEETSSHEET I R. MIEHLE.

TRIPPING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED FEB.5,1917.

l fifi gfigo Patented J une 4, 1918-.

3 SHEETS-SHEET 2- A TTORNEY R. IVHEHLE.

TRlPPlNG MECHANISM FOR PRINTING PRESSES.

. APPLICATION FILED FEB. 5, 191?. l gwg g Patented June 4,1918,

Q 3 SHEET--SHEET 3A pnirnn snares rainnr @FWCE.

ROBERT 1V[IEHLE, OF CHICAGO, ILLINOIS.

TRIPPING MECHANISM FGR PRINTING-PRESS'ES.

Application filed. February 5, 1917.

To all whom it may concern:

Be it known that 1, ROBERT MInItLn, :Cllllzen oi the United States,residlng at Chlcago, in the county of Cook and State of Illinois, haveinvented a certaia ;new and useful Improvement in Tr pping Mechanism for{rant-1rig-Presses, oat which the FliOllOWlllg isa tnlhclear,concise,and exact description.

This invention relates to tripping mechanisms tor multicylinder printingpresses, andespecially for the type of press known ,as a two-colorpress, in which the same sideo f the sheet receives two successiveimpressions from the cylinders respectively, but invention is .not to belimited to pressesof ,this

In tripping mechanismit is desirable that the COllSi-ILlChlOIlIbGSllGllthat thetrlpping of one of :the cylinders will follow automatically at alater and definite ,p'eriod withrefl lerence to the time of tnippingytheother; and a that either cylinder may be tripped separately orindependently of the other. .Snch

'characterof trippingmechanism has hereto- ;iore been applied to two\cyhnder pmntmg presses, as shown in the United States pattents issuedto 'me dated December 24:, H.901, No. 689,505, and December 16, 1913,No. 1,081,320. i

The primaryrobjectlof this invention is to provide an improved trippingmechanism of the described character for plural cylinder multi-colorpresses or presses having a plu- -alityrofcylinders for respectivelyprinting two or more colorson onersidelot the sheet or one ormore-colors on both SIClQS ot the sheet. in accomplishlng this ob ect 0tmy invention I employ tripping mechanism in dividual to each cylinderand utilize the movements which bring the first impression cylinder intoand out of printing positions, the tripping mechanism ofthesecondcylinder being normally effective to trip the same and the saidmovements oi the first cylinder serving to position said trippingmechanism of the second cylinder in. ineffective or unimiping positionat all tunes when the first cylinderqls in printing position. That is,the first impression CYllIlClGl, or the mechanism that brings thiscylinder into and out of printing relation, controls the adjustment ofmechanism which is employed tocouple the tripping mechanism pertainingto the second cylinder with that cylinder, the first cylinder breakingthe couple between the.

second imaressionc linder and itstri oin t) Specificatimrof LettersPatent.

Patented June t, 1918.

Serial No. 146,579.

mechanism each time the first impression cylinder is brought to printingposition. VYhen it isrlesired to trip the second cylinder mechanism isemployed for preventing the first cylinder or its shifting mechanismfrom breaking the aforesaid conple whereby the tripping mechanismpertaining to the second cylinder operates to maintain the secondcylinder in its non-printing position so long as the aforesaid couple isbroken.

By means of my invention, inorder to suspend the ,printing operation of.both impression cylinders, there need be employed but one tripping key.This key positions :the means that enables the tripping mechanismpertaining to the firstcylinder to operate, the ,means for tripping thesecond cylinder being positioned automatically by @the position of thefirst cylinder relative to the printing and non-printing positionsthereof.

iWith a view to the attainment of ,these ends and the accomplishment ofcertain otherobj ects which will hereinafter appear, the inventionconsists in the features of novielty in the construction, combinationand arrangement of parts, which will, .now be 'decribed with referenceto the accompanying d awings, and then more particularly pointed but inthe claims.

In the said drawings, Figures 1 and 2 are side elevations, partly insection, showing respectively, opposite sides of a portion ofprintingrelation. Ei .isa .verticalcross' section taken on the line5-5.of FigrG; and Figs. 6 and .7 are side elevations similar to Figs. 11and E2, showingparts in the positions .theyoccupyat the timethatthe hook30 of:

the cylinder elevating-and lmvering.lnecha- :nism of cylinder 4: hasmoved a short distance onits downward ln'lovement. Fig. 8 1s a partialvertlcal cross sect1on taken at l the right end of Fig. 6 in the sameelevation as Fig. 5, parts of the mechanism being omitted to show otherparts more clearly. Infcylinder .printingpresses, where the cylinderundergoes a to and fro or arising and falling motion with reference tothe "form bed, the cylinderraisingand lowering mechparting rotary anismusually embodies a spring for moving the cylinder in one direction, andpositive means, such as an eccentric or toggle, for moving it in theother direction, and the spring is usually employed and is preferablyemployed in this instance for producing the upward movement. One or moresprings, as shown at 1, 2, are used for each of the cylinders 3, 4, whosjournals 5 are supported in boxes 6 arranged in suitable guides 7,respectively. These cylinders are here shown as impression cylinders,but to which the invention is not to be limited. These cylindersconstitute members of printing couples whose complemental members 3 4are here illustrated as letter forms, but to which the invention is notto be limited.

Between the impression cylinders 3, 4, is arranged the transferringcylinder 8, which serves to transfer the sheet from the first cylinder 3to the second cylinder 4, in a way which will result in the secondcylinder producing an impression upon the same side of the sheet as thatupon which the first cylinder produced its impression. The transferringcylinder is driven by a gear 9, and has a smaller gear 10 meshing withgears 11, 12 on the cylinders for immotion to the latter. Gear 9 isdriven by gear 13 on shaft 14. The shaft 14 drives cam 15, whichactuates the cylinder lowering mechanism of the first cylinder, throughthe intermcdiation of an idler 16 and pinion 17 while the gear 13 drivescam 18 of the cylinder lowering mechanism of the second cylinder,through the intermcdiation of idler 19, pinion 20, idler 21 and pinion22, the peripheries of cams 15, 18, being provided with gear teeth forengagement with idler 16 and pinion 22,

respectively. The arrangement of teeth inthe several gears which drivecams 15, 18 is such that the two cams move together and perform theirfunctions in succession, each making one complete revolution for eachsheet printed.

The cylinder lowering and tripping mechanisms for the two cylinders arevery si1nilar in construction and operation, the differences consisting,mainly, in the means whereby the tripping of the second cylinder isdeferred after the operating key is released until the sheet which wasprinted by the first cylinder passes and receives an impression from thesecond cylinder. Because of the similarity of the lowering and trippingmechanisms of the two cylinders, in describing these mechanisms, thesame letters of reference will. be employed where corresponding partsare identical, and it will be understood that the description appliesequally to the mechanism of each of the cylinders.

Above the boxes 6 of the cylinders 34 are arranged eccentrics 23 restingin bearing blocks 24 and serving to lower the cylinders into compressionor printing positions when said eccentrics are rotated in their bearingblocks, and this may be done through the agency of crank arms 25 andconnecting rods 26 whose lower ends are pivoted to crank arms 27 rigidlysecured to rocker shafts 28. It will be understood that one of the crankarms 27 is secured to each end of each rocker-shaft 28 (see Fig. 5) andthat when a shaft 28 is rocked these arms through the medium of theirrespective connecting rods communicate motion to both. ends of thejournals or shafts 5 of the cylinders 34, respectively.

Mounted securely upon each of the rocker shafts 28 is a tooth 29 adaptedto be engaged by a hook 30 having a notch 31 formed at or near its loweror free end and arranged to drop over and engage the tooth 29 while theother end of the hook is pivoted to the free end of a crank arm 32loosely journaled or pivoted upon the shaft 28 so as to be capable ofindependent oscillation. The pin or stop 33 limits the upward movementof the tooth 29, this stop being fixedly carried on the frame of thepress. 9

The necessary oscillatory motion ofthe arms 32 and hooks 30 which,through the medium of the teeth 29, give the required rocking movementof the shaft 28, is produced by the cams 15, 18 each of which isprovided in one face. with a cam groove comprising a concentric ordwelling portion 34 and deflecting or active portions 35, 36. Each crankarm 32 is provided with a pin or anti-friction roller 37 adapted toengage into the groove of its corresponding cam so that when the camsare rotated in the direction of the arrows the arms 32 will beoscillated and, through the medium of the hook 30 and tooth 29, theshaft 28 be rocked for the purpose previously described.

On one face of each of the books 30 is a lug or pin 38, projectinglaterally therefrom into a groove 39 formed in the contiguous face ofthe cam arms 40 and 40 whose lower end is secured to rods 41, 41 Thegroove of each cam arm is, for the major portion of its length,concentric with its .corre sponding shaft 28, so that the lugs 38 rideidly to and fro in the grooves of their cor responding cams except whencam arms 40 and 40 are oscillated upwardly, as shown in Fig. 2 and Fig.7, and, in the event, when lug 38 arrives about at the limit of the up-.per end of its groove 39, it engages a cam portion 42 formed within thegroove thereby lifting the said lug and its hook 30 out of lock with itstooth 29 and permitting the hook to be moved downwardly by the arm 32 onthe next stroke ofthe arm (as shown in Fig. 4) without carrying with itthe tooth 29. When hook 30 is thus disengaged from its tooth 29 itscorresponding cylin- -2)"for the purpose hereinbefore described.

der 3 or 4: will be tripped and held in its elevated position out ofprinting position by the springs l2, While the arms 32 and hook 30 maycontinue their rocking movements, and this tripped condition will existuntil the notch 31 again returns to the position.

Referring now particularly to thecylinder lowering devices of cylinder3, of which, in Fig. 2, the hook 30 is shown in its upper or retractedposition and elevated out of non-cylinder lowering engagement with tooth29, and assuming that the hook 30 is in the lower position; as the cam15 is rotating in the direction of the arrow, the hook 30 will be swungto the lower position shown in Fig. 4, while the roller 37 is passingthrough the portion 35 of the cam groove and will be held in suchlowered position while the concentric or dwelling portion 34: of the camis passing the roller 37. While thisconcentric portion 34 is passing,the cylinder is at the limit of its downward movement and the impressionis taking place. When the portion 36 of the groove arrives at the rollerthe hook 330 begins to rise, and when the roller arrives at about midwayin the groove 36 the grippers 59 have arrived at about the position 59shown in Fig. 1, and the sheet will betransferred to the transfercylinder at the time when the cylinder 3 is in its midway position ofits rising movement, and continues to rise until the portion 35 of thecam groove again arrives at the roller. The actionofcam 18 of thecylinder lowering devices of cylinder 1 is the same as that of cam 15last described, except that the active portion 35 is divided into lowerand upper parts 35 35 with a concentric or dwelling portion 35 to behereinafter more particularly referred to, separating the two activeparts 35 35 Having now described the portions of the cylinder loweringand tripping mechanisms which are similar in their respectiveoperations, I will now describe the actuating means by which thetripping devices are put into operation. On the rod 41 of the trippingdevices for the first cylinder .is secured a lever 43 provided with anoperating key 14 arranged in a position accessible to the pressattendant, and adapted, when depressed, to rock the rod 41 and cam arm40. and to move the upper end of the arm 10 upwardly with respect to thelug 38 (Fig.

On the rod 41 of the tripping devices for cylinder 4 is loosely placed alever 45 car- .rying at its free end a stud 4-6 whose outer end isprovided with an anti-friction roller 47 adapted to be engaged by thecam ar ranged to turn with the cams 1518 and which is preferably fixedlymounted upon a -shaft 49 upon which the cam 15 is also fixedly mounted.

An arm a is fixed at one end upon shaft 41 and carries a Stud 5 at itsother end upon which the "hook lever c is mounted to turn. The lever 45carries a stud roller or pin ethatengages the hook (Z provided upon thelower end of the hook lever c. As "the cami 50 is in constant rotationit will intermittently depressthe roller 4-7 upon the lever 15 againstthe force of the spring 61 whereby the lever 45 is correspondinglydepressed against the force of the spring 61 that serves to return thelever 15 to its upper position when the cam 50 permits. While the hookcl is engaged with the stud roller or pin 0 the hook lever c is bodilymoved downwardly each time the lever 4155s moved downwardly by the cam50 and the hook leverc, 1n movlng downwardly, forces the arm a to belowered owing to 1ts connection with such arm at Z). The arm a islowered against. the force of spring 7 which maintains the hook d at thepin 6 when the lever 45 rises. When the arm a is lowered the shaft 11 isturned in a counter-clockwise direction, as viewedin Fig. 7 which istaken from the other side of the machine from that in which Fig. 1 istaken, with the result that the cam arm 10 is raised to bring the camportion 1-2 into the path of the lug 38 carried by the arm 30. This lugis thereforeraised to raise the arm 30 to its tripping position toprevent cylinder 4: from coming to its printing or impression positionfor the purpose hereinafter to be set forth. When the lever 45 is in itsuppermost position working clearance intervenes between the hook d andthe pin 6 to permit this hook to swing to the left (Fig. 1). This result*I achieve by providing the arm a with a stop finger a that engages astop a when the lever 45 has nearly reached its upper position, thislever 45 continuing to 'move upwardly sufficiently after the finger ahasengaged the stop a to provide the desired clearance between the hookd and the roller (2. The trifurcated lever g is mounted to rotate uponthe stud 7t fixed to the frame of the press. One arm of the lever gcarries a pin 2' that is interposed between theadjacent cylinder box (3andthe base of the guide-way opening in which the box moves.

preferably flexible. The lower end of this rod is normally adjacent thepin Z carried upon the hook lever c. The third arm of Another arm of thelever g carries a rod is that is ating engagement with the pin Z untilthe impression cylinder 3 is partially returned to its printing positionwhereby the hook d is maintained beneath the pin 6 until the impressioncylinder has partially returned to its printing position. The hook lever0 has a weighted arm 0 to cause this lever to move in-a coumer-clockwisedirection (Fig. 1) when permitted so to do. During the downward progressof the cylinder box 6 the pin 2' is depressed and the lower end of therod is brought into engagement with the pin Z at a time when workingclearance intervenes between the hook (Z and the pin 6 with the resultthat the lever c is swung to the position illustrated in Fig. 3. Thehook lever c and lever 4-5 are thus uncoupled so that the cam 50 willhave no influence upon the shaft 4C1 that pertains to the trippingmechanism of impression cylinder 4c whereby the cylinder 4; is allowedto continue printing so long as the cylinder 3 is printing.

When the cylinders 3, 4: are to be tripped it is necessary, after thecylinder 3 is tripped, that sufficient time elapse before the cylinder4: is tripped for the sheet last printed by cylinder 3 to pass fromcylinder 3 and to be received therefrom and to pass one and one-halftimes around the transfer cylinder 8 and thence to pass to cylinder 4tto be printed thereby. The cylinder 3 may be tripped at the desired timeby first press ing the key as at or about the time that the parts are inthe position shown in Figs. 1

and 2 when the cylinder 3 is in its raised position, and when the tooth29 of the cylinder elevating and lowering mechanism of cylinder 3 is inits upper postion, as in Fig. 2, and, at this time the grippers 59 ofcylinder 3 are in the position shown in Fig. 1, ready to receive a sheetfrom the feed board 60 although, if the press is to be tripped, it isnot usual to supply a sheet to the grippers 59 at this turn of thecylinder. The

depressing of the key 44 causes the cam arm 40 of the tripping devicesof cylinder 3 to be oscillated upward and thereby force its cam portion42 against the lug 38 on hook 30 to lift the hook out of lock with thetooth 29, as in Fig. 2, to allow cylinder 3 to re main in itsnon-printing position. the key it is released after the cylinder 3 hasbeen tripped and allowed to remain in its nonprinting position, thespring 58 will raise the arm 43 and turn shaft 41 to lower the cam arma0 and allow the hook 30 to fall into engagement with the tooth 29whereby the tripping mechanism pertaining to cylinder 3 is restored tonon-tripping condition and the cylinder 3 is permitted to be broughtinto printing relation.

Following the course of a sheet through the press the grippers 59 are onthe point of closing upon their stops and before this happens a sheethas been fed from the board When 60 in a position to be engaged betweenthe grippers 59 and their stops. The impression cylinder 3 rotates in acounter-clockwise direction (Fig. 1) and when the forward edge of thesheet has nearly reached the vertical line that includes the center ofthe shaft 5 of the cylinder 3 said cylinder is brought into fullprinting relation, continued rotation of this cylinder causing the sheetto be printed upon. After the rear edge ofthe sheet has passed theaforesaid vertical line the impression cylinder 3 is brought out of itsprinting position. When said cylinder is midway between its printing andnon-printing positions the grippers 59 are in the position indicated bythe dotted lines 59 (Fig. 1) and the rippers 63 oft-he transfer cylinderare in the position illustrated by the dotted lines 63 When thesegrippers reach the line joining the centers of cylinders 3 and 8 thesheet is transferred from the cylinder 3 to the transfer cylinder 8, thetransfer cylinder turning about one and one-half revolutlons beforetransferring the sheet to the grippers 62 upon cylinder 4:.

This latter transfer is made when the grip pers 62 and 63 reach the linejoining the centers of cylinders S and a. The impres sion cylinderrotates in a counter-clockwise direction (Fig. l) and when the forwardedge of the sheet has nearly reached the vertical line that includes thecenter of the shaft 5 of the cylinder 4t said cylinder is brought intofull printing relation, continued rotation of this cylinder causing thesheet to be printed upon. After the rear edge of the sheet has passedthe latter vertical line the impression cylinder 4C is started from itsprinting position, the movement of the cylinder t out of its printingposition being effected during the time that the grippers 62 reach theposition illustrated in Fig. 6, at which time the sheet is fullydisengaged and the cylinder 4 is raised to its highest position. Afterthe cylinder 4- has reached the position illustrated in Fig. 6 it islowered to a mid-position in time to take the sheet from cylinder 8which is just shortly before the grippers 62, 63 have reached theposition illustrated in Fig.

After the printing cylinder 3 has been fully raised from its printingposition it may be tripped to prevent it f1 om being lowered intoprinting position, in order that the sheet taken by the grippers 59 maynot be printed upon or in order that the impression cylinder may not beprinted upon if no sheet has been fed to said grippers. Prior to thetrip ping of the cylinder 3 the sheet previously printed, uponwith theaid of this cylinder should be allowed to continue its transit to beprinted upon by the cylinder 4: so that during this interval thecylinder 4: should not have its orderly operation disturbed. The trippedcylinder 3, being in its upperrise most position, allows the spring m toretain the pm i in its uppermost position against the bottom of theassociate cylinder box 6 whereby the rod 70 is prevented from operatingupon the pin Z so that the hookcZ normally is allowed to remain inengageable position below the roller or pin 6 whereby the cam. 50, inlowering the lever 45, will also lower thehook lever cto turn the rod ll'to lift the cam arm 4:0 to raise its cam element 42 whereby the lug 38lifts the hook 30 from the tooth 29 to trip the cylinder 4: when thiscylinder i in its uppermost position, as in Fig. 6. The impressioncylinder 4 thus remains in printing position until it has completed theprinting operation upon which it was engaged and is returned to itsnon-printing position in which itis'retained until cylinder .3 isreturned to printing position. Both impression cylinders are placed in{their non-printing positions by the springs or cylinder liftingmeans1-2 pertaining thereto and the force of these springs has to be overcomeby the eccentric mechanism 23 and the cam mechanism that controls thieccentric mechanism. [The socalled tripping is accomplished by omittingthe operation of the eccentric mechanism which omission is effected bythe disengagement of the hooks 30 upon the tooth 29. The first cylinder3 is tripped by the attendants depression of the key 44 causing the hook80 pertaining to cylinder Sto belifted from engagement with theassociate tooth 29. The cylinder l, 'beingin its uppermost nonprintingpositionyremains in this position because of the inactivity of the rodis and the lever g carrying it during the time the cylinder 3 is in itsnon-printing position, it following that cylinder l remain in itsnon-printingposition when cylinder 3 is in non-printing position sincethe cam Will then depress the lever 45 to lowerthehook lever c thatdepresses the arm a to turn the shaft 41 to lift cam arm. lO to separatethe associate hook 30 from the associate tooth 29. The means" (lever 45,hook lever (1, etc for operating the tripping mechanisin that pertainstopthe second impression cylinder 4 is inherently capable of performingthis function and does not have to beset or positioned to enable it toperform this function. In the normal printing operation of the pressthefunction of this means must be omitted or prevented on which accountthe couple effected .at parts (Z and e of.- the coupling mechanism isbroken Whenever the first cylinder3 is broughtinto printing position andwhen this couple is broken the cams 15 and 18 are permitted to performtheir functions in orderly sequence as set forth in my aforesaid Patent1,081,320. In other words the tripping iechanism pertainingrto thesecond cylinder l is normally positioned to trip allow the secondimpression cylinder to remain in its nonprinting position. Each time thefirst impression cylinder is lowered the means that render the trippingmechanism of the second impression cylinder effective are renderedineffective owingto the breaking of the couple (Z, 0 so that the cam 18pertaining to the second impression cylinder may perform its normalfunction of lowering this cylinder to printing position whenever thefirst impression cylinder 3 is lowered to printing position.

The mechanism for breaking the couple (I, e is the mechanism that bringsthe cylinder 3 to printing position. This mechanism performs itsfunction by breaking such couple through the intermediation of the box 6of-the cylinder 3 but I do not wish to be limited to the-employment ofthis box 6 or any art of thecylinder 3 for breaking said coup e.

When it is desired to have impression cylin der 4: print upon a sheetand to have the cylinder 3 omit its printingoperation upon this sheet,key 44: is depressed to maintain the impression cylinder 3 in a trippedor non printing position and the foot of the attendant is pressed uponthe arm g of lever to operate the impression cylinder 3 alone so as toprint but one impression on the sheet passing through the press thegripping handle 71 is pulled upwardly to the position indicated bydotted lines in Fig. 3. This handle is connected with the upper end of arod 0 whose lower end is connected with the lower end of therod 71:.When the handle is in its lowermost position the rod 0 does notinterfere with the functioning of the rod previously set forth butwhens-aid handle is pulled upwardly the rod 0 pulls the lower end of therod is to one side as indicated by dotted lines in Fig. 3and if the hookis in its withdrawn position as indicated in Fig. 3 the weighted lever 0will swing the hook beneath the pin 6. As a 0011- sequence-of thisadjustment the couple d, e is maintained to continue cooperative relation between the cam 50 and the shaft a1 whereby the impression cylinderat is tripped to allow the sheet discharged from the cylinder 3 to passfrom the press. without being printed upon by the cylinder 4:. If it isdesired to continue the printing operation of the cylinder 3 alone for asuccessive number of impressions the latch 79, that is pivoted upon thebaseof the handle 01., is turned into engagement with a stud 9 that iscarried by the frame of the press and passes through the slot in thehandle.

While I have herein shown and .particularly describedthe preferredembodiment of my invention I do not wish to be limited to the precisedetails of construction shown as changes may readily be made without do:

. g tobreak the couple (Z, 6. If it is desired parting from the spiritof my invention, but having thus described my invention I claim as newand desire to secure by Letters Patent the following 1. A printing pressincluding a pair of printing couples, each printing couple ineluding amovable element adapted to be moved into and out of printing position,tripping mechanism controlling the movable element of one 01"- saidcouples, press driven means .for rendering said tripping mechanismeffective, a couple member included in said press driven means adaptedto be moved to render said press driven means ineffective, means havingoperative connection with the movable elen'ient of the other couple andsaid couple member nd adapted to move said couple member to render saidpress driven means ineffective when said movable element of said otherprinting couple is moved. to printing position, and tripping mechanismcontrolling the movable clement of said other couple.

2. A. printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven element, connecting elementsestablishin an operative relation between said press driven element andsaid tripping mechanism, a couple member included in said cormectingelements adapted to be moved to break said operative relation, meanshaving operative relation bet veen said couple member and the movableelement of said other couple and adapted to move said couple member tobreak said operative relation when said movable member of said othercouple is moved into printing position, and tripping mechanismcontrolling the movable element of said other couple.

3. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven element, a lever actuated by saidpress driven element, a couple member adapted to establish operativerelation between said le ver and said tripping mechanismand adapted tobe moved to break the same, means having operative relation between themovable element of the other printing couple and adapted to move saidcouple member to break said operative relation when said movable elementis in printing position and a second tripping mechanism. controlling themovable element of said other couple.

4. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position,

tripping mechanism controlling the movable element of one oi saidcouples, a press driven element, a journaled rod controlling said tripmechanism, a lever journaled thereon and actuatively engaging said pressdriven element, a second lever secured to said rod, a couple membermovably mounted on one of said levers and adapted to engage the other toestablish operative connection there between, means having operableconnection with said movable element of said other printing couple andsaid couple member and adapted to move said couple member to break saidoperative connection When said last mentioned movable element is inprinting position, and a second tripping mechanism controlling themovable member of said other couple.

5. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven cam, an oscillating lever inengagement therewith, a lever controlling said tripping mechanism andadapted to assume an untripping position, a couple member movablymounted on one of said levers and adapted to engage the other of saidlevers to establish an operable connection therebetvveen, means havingoperable connection with said couple member and the movable element ofthe other printing couple and adapted. to break said operativeconnection when said last mentioned movable element is in printingposition, and a second tripping mechanism controlling the movable member0 said other couple.

6. A printing press including a pair of printing couples, each printingcouple in cluding a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, press driven means for renderingsaid trippingmechanism effective, a couple member included in said press driven.means adapted to be moved to render said press driven meansinefl'cctive, a connecting member abutting the mov able element ofsaidother printing couple and engaging said couple member and adapted tomove said couple member to render said press driven means ineffectivewhen said movable element of said other printing couple is moved toprinting position, vicldable means tor retaining said connecting memberin engagement with said movable element of said other couple, and asecond tripping mechanism controlling the movable member of said othercouple.

7. A printing press including a pair of printing couples, each printingcouple ineluding a movable element adapted to be soved into and out ofprinting position,

tripping mechanism controlling the movable element of one of saidcouples, a press driven element, connecting elements establishing anoperative relation between said press driven element and said trippingmechanism, a couple member included in said connecting elements adaptedto be moved to break said operative relation, a connecting memberabutting the movable element of said other printing couple and engagingsaid couple member and adapted to move said couple member to render saidpress driven means ineffective When said movable element of said otherprinting co.u ple is moved to printing means for retainingsaidconnecting member in engagement with said movable element of said othercouple, and a second tripping mechanism controllingthe movable elementof said other couple.

8. A printing press including a, pair of printing couples, each printingcouple including movable element adapted to be moved into and out ofprinting position,

tripping mechanism controlling the movable element of one of saidcouples, a press driven element, a lever actuated by said i press drivenelement, a couple member adapted to establish operative relation between said lever and said tripping mechanismand adapted to be moved tobreak the same, press driven means for rendering said tripping mechanismeffective, a couple member included in said press driven means adapted.to be moved to render said press driven means ineflective, a connectingmen-r ber abutting the movable element of said other printing couple,and engaging said couple member and adapted to move said couple membertoprender said press driven means ineffective when said movable elementof said other printing couple is moved to printing position, yieldablemeans for re taining said connecting member in engagement With saidmovable element of said nism controlling said other couple.

9. A printing press inch-iding a pair of printing couples, each printingcouple including a n' ovab-le element adapted to be moved into and outof printing position, tripping mechanism, controlling the mov ableelement of one of said couples, a press driven means for rendering saidtripping mechanism effective, a couple member in eluded in. said pressdriven means adapted to be moved to render said press driven meansineffective, a connecting member other couple, and a secondtrippingmechaabutting the movable element of said other printing couple andengaging said couple member and adapted to move said couple 'member torender said press driven means ineffective when idmovable element ofsaid other printing couple is moved to printposition, yiel dable themovable member of ing position, yieldable means for retaining saidconnecting member in engagement with said movable element of said othercouple, and a second tripping mechanism controlling the movable elementof said other couple.

10., A printing press including a pair of printing couples, eachprinting couple including a movable element adapted to be moved into andout of printing position, tripping mechanism controlling the movableelement of one of said couples, a press driven cam, an oscillating leverin engage ment therewith, a lever controlling said tripping mechanismand adapted to assume an untripping position, a couple member mo-vablymounted on one of said levers and adapted to engage the other of saidlevers to establish an operable connection thcrebetween, a connectingmember abutting the movable element of said other printing couple andengaging said couple member and adapted to move said couple member torender said press driven means inelfective when said movable element ofsaid other printing couple is moved to printing position, vieldablemeans for retaining said connecting member in engagement with saidmovable element of said other couple and a second tripping mechanismcontrolling the movable element of said other couple.

11. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, press driven means for rendering said trippingmechanism etfective, a couple member included in said press driven meansadapted to be moved to render said press driven means in effective, aresilient connecting member enga said movable element of said otherprinting couple and abutting said couple member and adapted to move saidcouple member to ren-,

der said. press driven means ineffective when. said movable element ofsaid other printing couple is moved to printing position,1nea-ns forretracting said connecting member from engagement With said couplemember, and a second tripping mechanism controlling the movable elementof said other couple.

12. A printing press ii'icluding a pair of printing couples, eachprinting couple, including a movable element adapted to be moved intoand out of printing position, tripping mechanism controlling the movableelement of one of said couples, a press driven element, connectingelements establishing an operative relation between said press drivenelement and said tripping mechanism, a conple member included in saidconnecting elements adapted to be moved .to break said operativerelation, a resilient connecting member engaging said movable element ofsaid other printing couple and abutting said couple member and adaptedto move said couple member to render said press driven means ineffectivewhen said movable element of said other printing couple is moved toprinting position, means for retracting said connecting member fromengagement with said couple member, and a second tripping mechanismcontrolling the movable element of said other couple.

13. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven element, a lever actuated by saidpress driven element, a couple member adapted to establish operativerelation between said lever and said tripping mechanism and adapted tobe moved to break the same, a resilient connecting member engaging saidmovable element of said other printing couple and abutting said couplemember and adapted to move said couple member to render said pressdriven means inefi'ective when said movable element of said otherprinting couple is moved to printing position, means for retracting saidconnecting member from ongagement with said couple member, and a secondtripping mechanism controlling the movable element of said other couple.

lt. A printing press including a pair oi printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven element, a journaled rod controllingsaid tripping mechanism, a lever journaled thereon and actuativelyengaging said press driven element, a second lever secured to said rod,a couple member movably mounted on one of said levers and adapted toengage the other to establish operative connection therebetween, aresilient member engaging said movable element of said other printingcouple and abutting said couple member, and adapted to move said couplemember to render said press driven means ineii'ective when said movableelement of said other printing couple is moved to printing position,means for retracting said connecting member from engagement with saidcouple member, and a second tripping mechanism controlling the movableelement of said other couple.

15. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven cam, an oscillating lever inengagement therewith, a lever controlling said tripping mechanism andadapted to assume an untripping position, a couple member movablymounted on one of said levers and adapted to engage the other of saidlevers to estab lish an operable connection therebetween, a resilientconnecting member engaging said movable element'of said other printingcouple and abutting said couple member and adapted to move said couplemember to render said press driven means inefiective when said movableelement of said other printing couple is moved to printing position,means for retracting said connecting member from engagement with saidcouple member, and a second tripping mechanism controlling the movableelement of said other couple.

16. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, press driven means for rendering said trippingmechanism efi'ective, a couple member included in said press drivenmeans adapted to be moved to render said press driven meansineifective,a connecting member abutting the movable element of said other coupleand said couple member and adapted to move said couple member to rendersaid press driven means ineffective when said movable element of saidother printing couple is moved to print- 7 moved into and out ofprinting position,

tripping mechanism controlling the movable element of one of saidcouples, a press driven element, connecting elements establishing anoperative relatlon between said press driven element and said trippingmechanism, a couple member included in said connecting elements adaptedto be moved to break said operative relation, a connecting memberabuttting the movable element of said other couple and said couplemember and adapted to move said couple member to render said pressdriven means inelfective when said movable element of said otherprinting couple is moved to printing position, yicldable means. forretaining said connecting member in engagement with said movable elementof said other couple, means for retracting said connecting member fromengagement with said couple member, means for retracting said connectingmember from engagement with said movable element, and a second trippingmechanism controlling said movable member of said other printing couple.

18. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven element, a lever actuated by saidpress driven element, a couple member adapted to establish operativerelation between said lever and said tripping mechanism and adapted tobe moved to break the same, a connecting member abutting the movableelement of said other couple and said couple 19. A printing pressincluding a pair of printing couples, each printing couple including amovable element adapted to be moved into and out of printing position,tripping mechanism controlling the movable element of one of saidcouples, a press driven element, a journaled rod controlling saidtripping mechanism, a lever journaled thereon and actuatively engagingsaid press driven element, a second lever secured to said rod, a couplemember movably mounted 011 one of said levers and adapted to engage theother to establish operative connection therebetween, a connectingmember abutting the movable element of said other couple member andadapted to move said couple member to render said press driven meansineffective when said movable element of said other printing couple ismoved to printing position, yieldable means for retaining saidconnecting member in engagement with said movable element of said othercouple, means for retracting said connecting member from engagement withsaid couple member, means for retracting said connecting member fromengagement with said movable element, and a second trippingmechanismcontrolling said movable member of said other printing couple.

20. A printing press including a pair of printing couples, each printingcouple including a movable element adapted to be moved into and out ofprinting position, tripping mechanism controlling the movable element ofone of said couples, a press driven cam, an oscillating lever inengagement therewith, a lever controlling said tripping meohanism andadapted to assume an untripping position, a couple member movablymounted on one of said levers and adapted to engage the other of saidlevers to establish an operable connection there between, a connectingmember abutting the movable element of said other couple and said couplemember and adapted to move said couple member to render said pressdriven means ineifective when said movable element of said otherprinting couple is moved to printing position, yieldable means forretaining said connecting member in engagement with said movable elementof said other couple, means for retracting said connecting member fromengagement with said couple member, means for retracting said connectingmember from engagement with said movable element, and a second trippingmechanism controlling said movable mem ber of said other printingcouple.

In witness whereof, I hereunto subscribe my name this third day ofFebruary A. D.,

ROBERT MIEHLE.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. 0.

